Pen



June 18, 1963 T. JENKINS 3,094,105

PEN

Original Filed Jan. 7, l957 INVENTOR 4 L/ol a 7: Jenkins a BY UL, My

ATTORNEY United States Patent and this application Jan. 19, 1961, Ser.No. 83,685 2 Claims. (Cl. 120--42.16)

This invention relates to a writing pen, and, more particularly, to apen having means for containing two or more compositions in separatedlocations, and means for feeding the compositions to a common writingpoint and thence to a writing surface.

The pen of this invention is particularly suited for carrying out themethods set forth in my cop ending application Serial No. 632,898, filedJanuary 7, 1957, entitled Luminous Writing, now U.S. Patent No. 2,977,-320, issued March 28, 1961, of which this application is a division. Inthe aforementioned patent are described certain compositions which arecapable, when mixed together, of reacting to produce cold orchemiluminescent light. The pen of this invention provides separatedreservoirs for containing such compositions as well as means for feedingthe compositions to a common location Where they are mixed with eachother to form. a chemiluminescent light-producing substance, whichsubstance is then immediately transferable to a Writing surface to formglowing writing characters or outlines.

One object oi this invention, therefore, is to provide a writing devicefor containing and feeding two or more separated compositions to acommon location, which common location in the illustrated embodiment isa writing ball of the type utilized in ball-point pens.

Another object of the invention is to provide, in a ball-point type pen,a plurality of separated reservoirs which communicate simultaneouslywith a common ball.

Another object of the invention is to provide a novel writing instrumentwhich includes a plurality of chambers or reservoirs for separatelymaintaining two or more difierent compositions as well as means wherebythe compositions may be fed unmixed to a common mixing and writingelement.

Other objects will be apparent from the remainder of the specificationand drawing.

In the drawings which form a part of this application:

FIGURE 1 is an elevational view, partly broken away, of the writingdevice with its associated parts;

FIGURE 2 is a sectional view taken on line 2-2 of FIGURE 1; and

FIGURE 3 is a sectional view taken on line 3-3 of FIGURE 1.

Referring to the drawings, a hollow cylindrical pen barrel 1 is providedat its upper end with screw threads 2 to which a screw threaded cap 3 isattached. A conical tip 4 is provided at the lower end of the pen barrel1 with a cylindrical threaded extension 5 which is attached to thethreaded end 6 of pen barrel 1. The conical tip has a ball point 7seated in aperture 8, Ball point 7 also functions as a ball check forpermitting free flow of fluid when the ball is rolled upon contact witha writing surface and which, upon cessation of the rolling pressure,shuts oil the flow of writing fluid. As shown in all of the figures, penbarrel 1 has a diaphragm or separator 9 vertically disposed on adiameter of the cylindrical barrel 3,094,105 Patented June 18, 1963 ice1 and dividing the interior of the barrel into two chambers. Theseparator 9 extends into and divides the conical screw tip 4substantially down to the ball point 7. A suitable seal 10 is disposedbetween the end of the separator 9 and the ball point 7, and a flat disctype seal 11 is provided between the screw cap 3 and the reservoirs 12and 13 formed in the pen barrel by separator 9.

The following serves to describe one method of utilizing the inventionas a writing device. Reservoirs 12 and 13 are filled separately byunscrewing the screw cap 3 and adding suitable solutions of the reactivecomponents set forth in the aforementioned co-pending application intothe respective reservoirs, one solution to each reservoir, with amedicine dropper or any other suitable filling device. The screw cap isreplaced and the seal 11 contained therein seals off the reesrvoirs.Writing is accomplished by rolling the ball point on a surface. Thiscauses a flow of the solutions and a mixing thereof on the ball point 7at aperture 8 immediately after which the mixture is transferred fromthe ball point 7 onto the surface to form writing characters oroutlines, with a chemical reaction occurring to render the writingcharacters visible by generation of chemiluminescent light.

To provide a description of a complete specific embodiment of theinvention, it may be mentioned that reservoir 12 in operation of thedevice, as above described, is filled with an alkaline solution of 1% byweight 3-aminophthal hydrazide containing 5% by weight sodium hydroxide.Reservoir 13 is filled with an aqueous solution containing 1% by weighthydrogen peroxide and 0.5% by weight potassium 'ferricyanide. Uponfeeding and mixing of the reactive solutions in forming writingcharacters with the ball point pen, a visible light of greenish bluecolor is generated, permitting one to write by following the projectedradiation coinciding with the writing characters.

It will be seen from the above description that the invention provides awriting device, which may be utilized to separately store solutions ofcertain chemiluminescent light-producing reactive components, and whichis adapted to feed the solutions to the writing point of the device toadmix the reactive solutions and permit their even and simultaneous flowonto a writing surface to provide luminous or visible light-emanatingwriting characters.

Various moidfications and alterations of the specific embodimentabove-described may be made without departing from the spirit of theinvention, the scope of which is defined by the appended claims. Forinstance, one modification would be to provide a triple chambered deviceone chamber of which could be utilized to separately contain an ordinaryink formulation, and in the other two chambers the separated solutionscontaining one each of the reactive components.

Having now set forth the invention, What I claim and desire to secure byLetters Patents is:

1. A writing device adapted to contain a plurality of separated fluidswhich are mixed upon discharge therefrom comprising: an elongated hollowbody portion having opposite ends; removable closure means sealing oneend of said body portion; a ball-mounting aperture formed in theopposite end of said body portion; a ball mounted in said aperture androtatable therein; and means disposed within said body portion providingat least two reservoirs, each reservoir being adapted to contain adifferent fluid and to maintain its fluid separated from the 3,094,105 34 fluid in any other reservoir as long as said ball remains stationarybut adapted to discharge and mix its fluid with References Cited in thefile Of this Patent the fluid from at least one other reservoir on saidball when said ball is rotated relative to said body portion, saidUNITED STATES PATENTS means disposed within said body portion includinga separator having one end engaging said closure means in 5 2204778Sturm June 1940 sealing relationship therewith and having an oppositeend FOREIGN PATENTS terminating closely adjacent said ball and a sealdisposed between said opposite end of said separator and said ball.947,260 France 10, 1949 2. The combination of claim 1, said closuremeans in- 10 990,028 France y 1951 eluding a seal engaging said bodyportion and said 1 r ny 25, 1951 1,020,013 France Nov. 12, 1952separator.

1. A WRITING DEVICE ADAPTED TO CONTAIN A PLURALITY OF SEPARATED FLUIDSWHICH ARE MIXED UPON DISCHARGE THEREFROM COMPRISING: AN ELONGATED HOLLOWBODY PORTION HAVING OPPOSITE ENDS; REMOVABLE CLOSURE MEANS SEALING ONEEND OF SAID BODY PORTION; A BALL-MOUNTING APERTURE FORMED IN THEOPPOSITE END OF SAID BODY PORTION; A BALL MOUNTED IN SAID APERTURE ANDROTATABLE THEREIN; AND MEANS DISPOSED WITHIN SAID BODY PORTION PROVIDINGAT LEAST TWO RESERVOIRS, EACH RESERVOIR BEING ADAPTED TO CONTAIN ADIFFERENT FLUID AND TO MAINTAIN ITS FLUID SEPARATED FROM THE FLUID INANY OTHER RESERVOIR AS LONG AS SAID BALL REMAINS STATIONARY BUT ADAPTEDTO DISCHARGE AND MIX ITS FLUID WITH THE FLUID FROM AT LEAST ONE OTHERRESERVOIR ON SAID BALL WHEN SAID BALL IS ROTATED RELATIVE TO SAID BODYPORTION, SAID MEANS DISPOSED WITHIN SAID BODY PORTION INCLUDING ASEPARATOR HAVING ONE END ENGAGING SAID CLOSURE MEANS IN SEALINGRELATIONSHIP THEREWITH AND HAVING AN OPPOSITE END TERMINATING CLOSELYADJACENT SAID BALL AND A SEAL DISPOSED BETWEEN SAID OPPOSITE END OF SAIDSEPARATOR AND SAID BALL.